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Flowmaster Force II Cat-Back

Fits 2011-2014 3.5L EcoBoost

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gain
4-18 hp / 5-18 tq
est. from comparable claims
price
$1,299.95
at Flowmaster Direct
typical price

Price tracked 7 times since Jul 12, 2026: low $1,299.95, high $1,299.95, currently $1,299.95.

low $1,299.95 · high $1,299.95 since Jul 12, 2026
install
2/5 difficulty · n/a
Buy at Flowmaster Direct→
also at Summit Racing

where to buy · 2 retailers tracked

  • Flowmaster Directbest pricechecked Aug 20$1,299.95view
  • AmericanTruckschecked Aug 2$1,299.95view
also sold on amazon
Buy at Amazon →

A cat-back exhaust replaces the piping and muffler from the catalytic converter back, using Flowmaster's chambered-muffler design for a deep tone.

why this one — Force II is one of Flowmaster's louder, more aggressive chambered tunings, built here for first-gen (2011-2014) 3.5L trucks.

Questions about this category

F-150: does anyone publish a horsepower number for a cat-back exhaust?F-150: what does a cat-back exhaust cost?F-150: how hard is it to install a cat-back exhaust, and how long does it take?
pairs well with
cp-e QKspl Catted Downpipe - High Flow (3.5L EcoBoost)
Price-drop alert for this part

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Gain shown is a no published number, not a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.